My baby is 10 days old and has been eating every 1-3 hrs since birth. But the past 2 days he is only eating every 3-4 hrs and I have to wake him for almost every feeding. Then he'll only stay on for 5 mins per breast and fall asleep. The pediatrician said he is gaining weight fine so it's ok but I'm worried it will effect my supply. Had anyone else had this happen?